Qhov kev ua txhaum tib yam hauv qhov sib txawv zaus tsav (VFD) tuaj yeem cuam tshuam rau cov lej sib txawv, feem ntau nyob ntawm tus qauv VFD, cov chaw tsim khoom, thiab cov kev ua txhaum tshwj xeeb. Hauv qab no yog cov laj thawj ua txhaum cai thiab lawv cov peev xwm sib raug raws li kev cai txhaum cai:
I. Overcurrent Fault
● Ua rau: Tsis raug lub cev muaj zog lub npe cov ntaub ntawv tawm tswv yim, kev thauj khoom ntau dhau ntawm lub cev muaj zog, lub tshuab kaw, lub cev muaj zog, cov khoom siv inverter puas, thiab lwm yam.
● Cov lej ua yuam kev:
• OCF: Qee lub npe siv cov cai no rau kev ua txhaum cai dhau lawm.
• OL: Hauv qee qhov inverters, overload (ib qho tshwm sim ntawm overcurrent) yuav raug qhia los ntawm OL code.
II. Short Circuit Faults
● Ua rau: Rwb thaiv tsev teeb meem hauv lub cev muaj zog lossis lub cev muaj zog- mus rau - inverter cables, tam sim no transformer tsis ua hauj lwm, lub hwj chim board los yog IGBT fais fab seem malfunction, thiab lwm yam.
● Cov lej ua yuam kev:
• SCF1: Lub cev muaj zog luv luv.
• SCF2: Impedance luv luv Circuit Court.
• SCF3: Hauv av luv luv.
• SC: Qee cov inverters tsuas yog siv SC code los qhia txog kev ua txhaum ntawm luv luv.
III. Overheating txhaum
● Ua rau: Overheating ntawm cov dab dej kub, lub cev muaj zog ntau dhau, tsis zoo inverter cua sov dissipation, thiab lwm yam.
● Cov lej ua yuam kev:
• OHF: Qee lub tuam txhab siv cov cai no rau kev ua kom kub dhau.
• OT: Lwm cov inverters yuav siv OT code rau overheating.
IV. Overload Faults
● Ua rau: Ntau lub cev muaj zog tam sim no ua rau lub inverter lub thermal tiv thaiv sab hauv.
● Cov lej yuam kev:
• OL: Raws li tau hais ua ntej, overload faults yog qhia los ntawm OL code nyob rau hauv ntau inverters.
V. Phase Loss Fault
● Ua rau: Inverter tsis txuas nrog lub cev muaj zog, tsis sib haum xeeb ntawm lub cev muaj zog thiab lub zog inverter, lossis theem poob hauv cov khoom siv hluav taws xob.
● Cov lej yuam kev:
• PH: Qee tus inverters siv cov cai no los qhia txog qhov tsis raug ntawm theem poob.
• Input Phase Loss Fault (cov cai tshwj xeeb tej zaum yuav txawv ntawm cov chaw tsim khoom): Qhia txog theem uas ploj lawm lossis tsis raug hauv inverter lub hwj chim mov.
VI. Voltage Faults
● Ua rau: Tsawg lossis siab lub ntsiab hluav taws xob hluav taws xob, kev puas tsuaj ntawm tus choj rectifier, qhov ntsuas hluav taws xob hluav taws xob tsis ua haujlwm, thiab lwm yam.
● Cov lej ua yuam kev:
• UV: Qhia tawm qhov hluav taws xob tsawg.
• OV: Qhia qhov muaj zog input siab.
• Inverter Undervoltage Fault (cov cai tshwj xeeb tej zaum yuav txawv ntawm cov chaw tsim khoom): Qhia tias cov khoom siv hluav taws xob tseem ceeb yog qhov tsawg dhau.
• Inverter Input Overvoltage Fault (cov cai tshwj xeeb tej zaum yuav txawv ntawm cov chaw tsim khoom): Qhia tias cov khoom siv hluav taws xob tseem ceeb yog qhov siab dhau lawm.
VII. Kev sib txuas lus yuam kev
● Ua rau: Kev sib txuas lus cuam tshuam ntawm inverter lub tsheb npav sib txuas lus.
● Cov lej ua yuam kev:
• C-Err: Qee tus inverters siv cov cai no rau kev sib txuas lus tsis raug.
• Inverter Communication Fault (cov cai tshwj xeeb yuav txawv ntawm cov chaw tsim khoom): Qhia txog kev sib txuas lus txawv txav.
VIII. Lwm yam txhaum
● Nres Overspeed Fault: Sudden nce nyob rau hauv DC lub tsheb npav voltage vim muaj zog braking ntau los yog siab load inertia.
• Fault code: BF (qee hom npe).
● Inverter precharge Circuit Court txhaum: Ib qho teeb meem tshwm sim hauv lub precharge circuit.
• Fault code: CrF (qee hom npe).
● Lub cev muaj zog overspeed txhaum: Lub cev muaj zog kev khiav hauj lwm ceev tshaj tus nqi teev.
• Fault code: SOF (qee hom npe).
● Ceev lus tawm tswv yim poob txhaum: Poob ntawm lub encoder tawm tswv yim teeb liab.
• Fault code: (Cov lej tshwj xeeb txawv ntawm cov chaw tsim khoom).
Hauv cov ntsiab lus, qhov ua txhaum zoo ib yam tuaj yeem cuam tshuam rau cov lej sib txawv nyob ntawm tus qauv VFD thiab cov chaw tsim khoom. Yog li ntawd, thaum daws teeb meem VFD faults, nco ntsoov sab laj cov khoom siv phau ntawv los yog cov chaw tsim khoom muab cov lus yuam kev los txiav txim qhov ua txhaum tshwj xeeb thiab kev daws teeb meem.